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- 1. Multiple ChoiceWhat is corrosion?The release of oxygenBreakdown of a metal
- 2. Multiple ChoiceIron rust in the presence of:VacuumMoistureOxygenMoisture and Oxygen
- 3. Multiple ChoiceTo protect iron against corrosion, the most durable metal plating on it, is:Zinc platingNickel plating
- 4. Multiple Choice
Is this an example of corrosion?YesNo - 5. Multiple Choice
What is the chemical nature of rust?
iron (II) oxide
hydrated iron (II) oxide
iron (III) oxide
hydrated iron(III) oxide
- 6. Multiple Choice
What is the chemical nature of rust?
iron (II) oxide
hydrated iron (II) oxide
iron (III) oxide
hydrated iron(III) oxide
- 7. Multiple Choice
What conditions are required for rusting?
water only
oxygen only
water and oxygen
- 8. Multiple Choice
Which diagram shows the most favourable conditions for rust to appear on the nail?
A
B
C
D
- Answer choicesTagsAnswer choicesTags